Abstract: Due to the high yield strength and high hardness of cold-rolled products with silicon content above 3.0 %, each stand is in a state of high rolling force during rolling, and the bad shape of the strip often occurs, and the strip after rolling presents edge waves or abnormal edge waves. The bad shape of strip with silicon content over 3.0 % in a tandem cold rolling mill of Shougang was analyzed. By adjusting the rolling load of each stand, the value of rolling shift and optimizing the use of rolls, the qualified rate of strip shape can reach over 98 % and the quality of strip shape can be improved.

Key words: cold rolling, rolling force, roll, roll shifting